Indicator-lock



4 Sheet sSheet 1.

(No Model.)

F. A. JILLSON, INDICATOR LOCK.

No. 299,895. Patented May 27, 1884.

fnvenfozt' 1 M A y M m M a y I MM 7 1 iillllililllll N. PETERS. Phmmimo m mr, Washington. I)v c.

(No Model.) I 4 Sheets-Sheet 3.

P. A. J ILLSON.

INDICATOR LOCK.

No. 299,395. Patented M93127, 1884.

K0717 5595: I nuen/an' fl/ia'rne ys. I

4 Sheets-Shet' 4.

(No Model.)

F. A. JILLSON.

- INDICATOR LOOK.

v Patented May 27-, 1884.---

Wkneeses: 1 f y 0 A/w UNITE STATES PATENT Fries.

FRANK A. JILLSON, OF RAOINE, VISCONSIN.

iNDl CATOR-LOCK.

SPECIFICATION forming part of Letters Patent No. 299,395, dated May 27, 1884.

Application filed March 4,1884. (NO model.)

T aZZ whom it may concern.-

Be it known that I, FRANK A. JILLsON, of Racine, in the county of Racine, and in the State of Wisconsin, have invented certain new and useful Improvements in Indicator-Locks; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to indicator-locks, and will be fully described hereinafter.

In the drawings, Figure 1 is a plan view of my lock. Fig. 2 is a side view. Fig. 3 is a plan view of the under side of the lid. Fig. 4 is a longitudinal section. Fig. 5 is a plan of my lock with lid removed. Fig. 6 is a like view with dials removed. Fig. 7 is a section through line 00 m, Fig. 1. Fig. 8 shows details. Fig. 9 is a'view of part of a car with a modilied form of my lock in place thereon. Fig. 10 is a view showing the locking end of the same closed, and Fig. 11 a view showing it open. Fig. 12 is a like view of thelock turned over.

The case of my improved lock is made in two parts, A A, the part A forming what I call the bottom of the case, while A is the lid or cover. The bottom is provided with studs a a a, 8:0. On the stud a, I first slip a ratchet-wheel, B, having a hub that projects up to receive a wheel, B, that has a single rounded tooth b, projecting out from its periphery, and above this a dial-plate, B The next stud, a, carries a dial-plate, B, a singletooth wheel, 0, and a cog-wheel, 0. Stud a carries merely a dial-plate and cog-wheel. The ratchet-wheel B lies near the bottom A of the case, in position to receive a pawl, E, that is hinged to a slide, E, and this slide has a bifurcated lug, E that grasps loosely the trunnion of a latch, F, so that the latch may be fully turned over onto the case or off of it independently of the slide; but the latch cannot be moved in the direction of the length of the trunnion without carrying the slide with it. The slide E has a shoulder, E, that pro 5 j cots through a slot in the edge of the case, and

the case'is provided with a flange, e, that is slotted or bored vertically to take a sealingwire, 6. The shoulder E of the slide is correspondingly perforated to receive the sealingwire, and also has an opening to take a padlock, E, which, by abutting against the flanges e of the case, will prevent the slide from reciprocating. After the two parts of the case have been placed together, the case is secured to the door by a bolt, f, at the rear, and the shank of a staple, F, in front, the staple projecting above the top plate, A, far enough to take the hasp F and permit the tongue F of latch F to pass in over the hasp to lock it in place; and to retain the latchF in this position when the padlock is not in use, I provide the latch with a notched lug, g, and provide a catch, that reciprocates at right angles to the case, and place a spring, 9 behind it, that serves-to force it into the notch in lug 9 when the latch is in the position shown in Fig. 5, this latch to be withdrawn when required by pressure on the handle 9. A spring, 0, bearing on the head of pawl E, serves to hold it in position to engage with the teeth of wheel B, so that whenever the latch F is drawn back far enough to carry its tongue F out of the staple the pawl will jig thewheel B one tooth, and then if the latch is thrust forward again to again lock the hasp in place the next time it is withdrawn another jigging will take place, each jigging causing a new number to appear at opening 1 in top of the case, and thus each time the latch is thrown over and forward the wheel B will be jigged one tooth, carrying the wheel B about with it until tooth b comes into mesh with wheel 0. \Vhen this occurs, the tooth b will jig the wheel 0 one space, and as its dial-plate turns with it will cause it (dialplate B) to expose a new figure, and then the tooth I), when next the slide E is reciprocated, will pass out of mesh with wheel 0, and for the next nine reciprocations of the slide E the wheels B B will be jigged independently of wheel 0, causing the dial-plate B to exposea diiferent figure at each jigging, each complete revolution bringing the tooth b into position for jigging wheel 0 one space, and each entire revolution of wheel carrying the wheel 0 about, so that its tooth b will jig the wheel 0 on stud a", which in turn at each successive revolution jigs the wheel 0 on stud a one space, so as to cause its dial to show a new letter or figure, and thus every time the lock is opened a new combination of letters or figures is displayed, as in Fig. 1.

It will be observed that the crown of each tooth of the cog-wheels G is concaved to conform to the periphery of wheel 0, and therefore each eog-wheel is locked by its adj aeent wheel 0 until the teeth 1) reaches it.

In the modifications shown in Figs. 9, 10, 11, and 12, I have a dilferent form of latch and means of connecting it with the slide E, the slide E being made of a general U shape, the band of the slide having ears h, in which the latch F is hinged, this change dispensing entirely with the trunnion of the latch shown in Figs. 5 and 6. lhe shorter arm of theslide is formed with a catch for engagement with another catch, 9, also of modified form. In both instances I provide a safety-pawl, c, that is actuated by a spring, C to aid in holding the wheel B. The rear end of pawl E is also provided with a dog, E, that also performs the same oiliee when the slide is in the position shown in Fig. 10. Therefore it will be absolutely impossible to turn the wheel B without drawing out slide E.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A many-toothed wheel, 13, and dial l3",

in combination with a single-toothed wheel adapted to turn with said many-toothed wheel and dial, an interdental wheel, and another dial, the two latter revolving together, whereby the latter is jigged once at each revolution of wheel, the teeth of which have crowns that are coneaved to conform to the periphery of the single-toothed wheel B, as described.

2. The wheel 13, having raised teeth, in combination with the slide and its pawl, the latter having a rear dog, E to aid the head of the pawl in looking the wheel B and preventing it from being turned except through the slide, as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in the county of Mihvankeeand State of lViscoir sin, in the presence of two witnesses.

FRANK A. JILLSON.

\Vitnesses:

S. S. S'roU'r, H. G. UNDERWOOD. 

